Home / 42,722.84-64,095.20-13,140.93

Finding the Fourth Proportional to 42,722.84, 64,095.20 and 13,140.93

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Solution

The fourth proportional to 42,722.84, 64,095.20 and 13,140.93 is: 19,714.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,722.84 : 64,095.20 = 13,140.93 : x
  2. Step 2: Convert to fraction form
    42,722.84/64,095.20 = 13,140.93/x
  3. Step 3: Cross multiply
    42,722.84x = 64,095.20 × 13,140.93
  4. Step 4: Simplify right side
    42,722.84x = 842,270,536.54
  5. Step 5: Solve for x
    x = 842,270,536.54/42,722.84
  6. Step 6: Final answer
    x = 19,714.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.